A1XE : cpu fan not running, no video output

[lionstorm]

I received my board 1 month but lack a strong psu so now I got it but at power, the cpu fan does not spin and there is no video output from my AGP radeon 7500. But the green led on the moterboard is working. How do I continue ?
Lio

[th4t1guy]

check your RAM

[vortexau]

RAMcolumn/row configurations supported by the memory controller:

           Sbk Raddr Caddr  MB    

            1,  11,  8,     8,    

            1,  11,  9,     16,    

            1,  11,  10,    32,    

            2,  12,  8,     32,    

            2,  12,  9,     64,    

            2,  12,  10,    128,  

            2,  12,  11,    256,  

            2,  13,  11,    512,  

            2,  13,  9,     128,  

            2,  13,  10,    256,  


Sbk is the number of banks, RAddr and CAddr are row and column address
bits, and MB is the resulting size of the module.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(I am quoting the highest authority in this information; Hans-Joerg himself!)

[lionstorm]

I bought the recommended registered ram, 512Mo kinston. What about the fan not spinning (fan power cable is connected somewhere on the motherboard, on the left side of the mainboard) ?
Lio

[amiga1260]

Which brand is your PSU and how many Watts?

Try that PSU in a PC.

Find an Antec PSU and buy it.

[lionstorm]

psu is 300W as recommended.
Lio

[Waccoon]

Stupid check:  That's exactly what happens on my PC when the floppy power connector is plugged in backwards.

BTW, how many AmigaOne users hook up a floppy?

[lionstorm]

no drive connected ATM, only the mainboard, the graphic card, the sound card and Ram.
Lio

[Agafaster]

I have a floppy hooked up. but its:
a) knackered or the A1 doesnt like Amiga DD Floppies
b) not actually screwed in: its 'floating' by the tower !

@ Lionstorm : did you go through and check all the jumpers etc as detailed in the quickstart guide ?

[Waccoon]

@Agafaster:  I don't think anything other than Amigas like Amiga DD Floppies.  I was hoping the AmigaOne would have an optional legacy PCI card with a true Amiga floppy controller on it, or something.

[lempkee]

lion: did u connect the power properly? ,
my guess is that your atx aint cutting the on power when u start it , when u press the ON button it should just give power for a little sec and then cut it.

also not that u need 2 switches normally,
(1 main on/off (on psu) and 1 normal on/off switch ...)

you could always just take a screwdriver and tap the pins(2 pins) (just tap 1 time , short circuit em)on the motherboard to get it running (o see if its the prob) , i need to check my mobo to tell you where tough, hopefully someone else can tell u as i will be away for 2 days now..

anyway u must have this fuction working (the button]/pins connected with a proper connector)

cheers

[lionstorm]

@ agafaster : yes I checked jumpers and etc several times. Do I expect a video output without the ram plugged ?
Lio

[xeron]

lionstorm wrote:
Do I expect a video output without the ram plugged ?

Possibly, but then the U-Boot has code to execute the BIOS on graphics cards, and that would probably need RAM to work.

[lionstorm]

@lempkee : I think I did it right since the green led on the motherboard is lighting so something is working but the fan cooler on top of the daughter ppc card does not spin although it is connected. I did not take care if the fan on the top of the radeon graphic card is spinning. I Have to check that when I go home.
AFAIK the tower I just bought is having only one button (it is a vivid acryl from suntek)
Lio

[Herewegoagain]

First and formost, try a different power supply.  I've seen this happen on PC's many times where the system powers on, the leds light up, but no video and no "post beeps"... Usually changing the power supply will take care of it.  Although, it could be signs of something even worse....

Also try to reseat your AGP card, as most AGP slots require an extra push to get the card seated all the way down (not with excessive force though).  It may look like it is inserted, but may not be seated completely down.  That will also cause no video, but shouldn't make the cpu fan not turn.